Cameras with interchangeable lenses offer vastly superior photography options over traditional point-and-shoot cameras. Everything from versatility to photograph quality is an improvement, though all of these benefits do come with a significantly higher price tag. Selecting the best lens for your situation may seem overwhelming initially, but as long as you just consider the most important features and don’t get bogged down in details, you can locate the best lens for your situation without much hassle.
6 A few examples of focal length (based on 35mm equivalents) include wide angle lenses, often around 24 or 28mm; telephoto lenses, anywhere between 80 and 300mm; and standard or all-purpose lenses, usually spanning around 28 to 80mm.For f-numbers, a camera you'll use for shooting indoors without a flash should have a lower f-number like 1.4 or 2, and a camera you'll use for shooting outdoors, especially of moving objects, should have a higher f-number, like 5.6 or 8, or even much higher like 16 or 22.
Choose the maximum aperture you need. A lens' aperture is the mechanism that allows light into your camera, which influences your exposure and depth of field. A larger aperture lets in more light and has a shallower depth of field, and it's indicated by a smaller f-number, such as 1.4. A smaller aperture lets in less light and is indicated by a larger f-number, such as 5.6.